1. Use the dev console to generate messages or events that match your queue rule. Go to the queue tab in your app dashboard and make sure that the messages ready count is increasing. Note that the messages ready count won't increase if you have a client consuming messages from this queue. See queue tab screenshot:

2. Install a command line tool for consuming messages using the AMQP protocol to check that messages published on channels (using the dev console or from any other source) are being pushed into the queues based on the queue rules.

Then you need to go to your app dashboard to retrieve an API key that has access to the queues (your root key will typically have access to subscribe to all queues). Then check the server endpoint, vhost and queue name (which is always prefixed with a scope which is your appId) from the queue dashboard (see above) and issue a command such as: